{"ob_id":92792,"names":[],"terms":[{"ob_id":78,"label":"units","value":"1","vocabulary":""},{"ob_id":26504,"label":"standard_name","value":"number_of_observations","vocabulary":""},{"ob_id":100648,"label":"var_id","value":"number_of_observations_pm","vocabulary":""},{"ob_id":100649,"label":"long_name","value":"number of observations used for calculating the L3 (PM)","vocabulary":""}]}